CA1095484A - Gripping chuck for spools - Google Patents

Gripping chuck for spools

Info

Publication number
CA1095484A
CA1095484A CA308,281A CA308281A CA1095484A CA 1095484 A CA1095484 A CA 1095484A CA 308281 A CA308281 A CA 308281A CA 1095484 A CA1095484 A CA 1095484A
Authority
CA
Canada
Prior art keywords
shaft
spool
outer members
inner member
pressure element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA308,281A
Other languages
French (fr)
Inventor
Reinhard Hehner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jagenberg Werke AG
Original Assignee
Jagenberg Werke AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jagenberg Werke AG filed Critical Jagenberg Werke AG
Application granted granted Critical
Publication of CA1095484A publication Critical patent/CA1095484A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/18Constructional details
    • B65H75/24Constructional details adjustable in configuration, e.g. expansible
    • B65H75/242Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages
    • B65H75/248Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages expansion caused by actuator movable in axial direction
    • B65H75/2484Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages expansion caused by actuator movable in axial direction movable actuator including wedge-like or lobed member

Landscapes

  • Winding Of Webs (AREA)
  • Clamps And Clips (AREA)
  • Winding Filamentary Materials (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Replacement Of Web Rolls (AREA)
  • Unwinding Webs (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)

Abstract

ABSTRACT OF THE DISCLOSURE
A chuck for use with spools comprises a shaft and at least one inner wedge-shaped member mounted to one end of the shaft for axial movement and biased away from the shaft. A gripper comprises at least two outer mem-bers slidably mounted on the inner members to effect movement radially out-wardly to thereby grip the inside of the spool. A first stop is connected to the gripper and engageable with the outer edge of the spool to limit the movement thereof with respect to the outer members and movable with respect to the inner member and a second stop is connected to the shaft for engaging with the outer members to limit their axial movement against the force of the bias.

Description

1095 ~4 This invention relates to a gripping chuck for a spool with an inner wedge-shaped member which is axially movable against the force of a pressure element and is borne by a shaft end and which supports outer, shell-like members which constitute gripping jaws that are clampable in the radial direction.
Chucks of this type are known as shown in German design patent 77 10 804. In the known chucks, a diaphram assembly under gas pressure con-stantly acts on movable wedge-shaped parts in the axial direction, so that the gripping jaws remain constantly tightened in the radial direction. This diaphragm assembly makes the chuck costly, ~ecause space must be provided for such assembly and the feeder lines for same. Moreover, it is particular-ly disadvantageous that the tightening of the gripping jaws by means of the pressure gas can take place only after the spool has been slid onto the chuck. The operating personnel thus have to perform successive specific steps, e.g. sliding on the spool, thereafter introducing the pressure gas and then clamping off the source of the pressure gas.
The object of the present invention is to provide a chuck for spools which will perforce cause the tightening of the jaws with the sliding on of the spool. At the same time, it must be assured that in the tightened final state the spool is always in the same axial end position, so that no correcting positioning will be necessary after the spool is put on. Exact axial alignment of the spool is essential to the winding of the lengths of material.
According to the present invention, there is provided a chuck for use with spools comprising: a shaft; at least one inner wedge-shaped member;
means mounting the inner member to one end of the shaft for axial movement and biasing same away from the shaft, gripping means comprising at least two outer members slidably mounted on the inner member to effect movement radi-ally outwardly to thereby grip the inside of a spool; first stop means con-nected to the gripping means and engageable with an outer edge of the spool _1- ' ~

1895 ltj~

to limit the movement thereof with respect to the outer members and movable with respect to the inner member; and second stop means connected to the shaft for engaging with the outer members to limit their axial movement against the force of the bias.
According to a particularly preferred specific embodiment, the mounting means includes a pressure element and the axial movement of the in-ner member in the direction of the force of the pressure element is limited by an adjusting device. A pressure spring is particularly suited to be the pressure element and a bolt screwable into the shaft is particularly suited to serve as the adjusting device. The adju-ting device serves to prestress the pressure element and simultaneously set the radial distance of the outer members or jaws. In addition, the adjusting device, in combination with a cap-like cover, can serve to limit the axial movement of the outer members.
For this, a specific embodiment is eminently suitable, in which the cover has a base through which the adjusting bolt is pressed and which has a radi-ally overhanging rim which limits the movement of the outer members in the direction of the force of the pressure element. The pressure element, in particular a pressure spring, may be arranged between the bolt and the inner member and bounded by the shaft end and the base of the cover. In a partic-ularly advantageous specific embodiment, the pressure element is a springarranged in a cavity in the end of the shaft. The adjusting device compris-ing the screw bolt is appropriately guided through this pressure spring and is adjustable by means of a thread inside the shaft end and with its bolt head it causes pre-stressing of the pressure spring by way of the cover base.
The cover base itself, however, is axially movable relative to the bolt.
Thus, depending on the tension applied, the bolt head is free or lies against the cover base. Therefore, in the prestressed state before subJecting the pressure spring to tension, the bolt head will lie against the cover base.
When the cover base is moved by the inner member against the pressure spring (tension state), the bolt head will be free and will be at an axial distance -lO~S'~

from the cover base.
In the chuck according to the present invention, the following advantages are combined in a simple and compact design: Through an axial movement with the spool, automatic tensioning is obtained without the need for an activating device for pressure gas or the like. In the chuck, the clamping jaws are concentrically pressed radially outwardly, so that the centering of the spool is assured. At the same time it is obtained that with axially movable outside clamping jaws, the spool will always be aligned in exactly the same axial position. As the clamping elements are under the in-fluence of the pressure element, a tolerance compensation is always possible, even in the exactly aligned axial position. It is not necessary, therefore, to have spools with exactly calibrated inside diameters, which would make special processing necessary given the present state of the art.
The present invention will be better understood in view of the following when taken with the drawings which show embodiments of the inven-tion by w~y of example and wherein:
Figure 1 is a longitudinal section through a chuck according to the present invention;
Figure 2 is a cross-section along II-II of Figure l;
Figure 3 is a longitudinal section through the chuck of Figure 1 with the spool mounted; and Figure 4 is a cross-section view of an alternative embodiment for spools and intended for transmitting a moment.
Referring now to Figures 1 and 3, the chuck connected to shaft 1 comprises, when viewed radially from outside in, the outer shell-like mem-bers 2, at least one inner wedge-shaped member 3 and the shaft end 4. To accept a pressure element 11, the end 4 of shaft 1 has an axially extending cavity 8. In the embodiment shown, the inner member 3 comprises a one-piece hollow cone having an octagonal outer cross-section. The inner wedge-shaped member 3 is connected to the shaft end 4 by way of a splined inner profile lO9S~84 which enables only axial movement with respect to the shaft end 4.
A cap-like cover is attached to the shaft end 4 and has a base 5 at the central portion and a rim 6 at the periphery. Base 5 and rim 6 have stop surfaces which are perpendicular to the axis of the cover and shaft.
An adJusting device comprising screw bolt 7 is guided centrally through a hole in the base 5. The screw bolt 7 extends through the cavity 8 and is engaged in an internally threaded bore 9 and is thus movable axially in shaft end 4 when rotated. The head 10 of bolt 7 rests against the base 5 and prior to pushing the spool 13 over base 5, it subjects to tension the pressure el-ement 11 comprising a pressure spring arranged in cavity 8.
On the inner member 3, four outer members 2 are arranged in anaxially movable manner. Each of the outer members 2 has an inner surface having an obtuse-angled "barn roof" shape, so that an outer member 2 will be supported by two surfaces of the inner member 3. The tangential distance of the outer members 2 varies in relation to the axial movement. Each of the outer members 3 has a radially outwardly extending stop flange 12 at the end nearest to the shaft. The spool 13 can rest against stops 12. The axial movement of the outer members 2 in the longitudinal direction of shaft 1 is restricted by flange stop 14 attached to shaft 1. The axial movement of the outer members towards the right in Figures 1 and 3 is restricted by the over-hanging rim 6 and the cap rim 6 is attached to the inner member 3. The out-er members 2 have a ring groove 15 which is preferably arranged in the right half of the outer members 2 and a tension spring 16 is arranged in the ring groove 15. The tension spring 16 presses the outer members 2 together radi-ally and thus acts to urge them axially in the direction of rim 6 due to the inclined surface between the outer and inner members.
In the alternative specific embodiment shown in Figure 4, at least one of the outer members 2 has an outwardly extending cam 18. The spool 13 has a groove 17, so that the spool can be slid onto cam 18. Cam 18 and groove 17 engage each other, so that moments are transferable between shaft l~S~4 end 4 and spool 13. This design is suitable, for example, for unwinding processes, in order to transfer a braking force from the chuck to the spool 13.
The method of operation of the chuck according to the invention is as follows: In the starting position of Figure 1 with the spool 13 not mounted, the outer members 2 rest against the overhanging cap rim 6 attached to the inner member 3. Depending on the inside diameter of the spool, the screw bolt 7 is moved so that the outside diameter of the clamping jaws, which corresponds to the outside diameter of the o~lter members 2, will be a few millimeters less than the inside diamete,^ of the spool 13. The deeper the bolt 7 is screwed into the shaft, the shorter becomes the relative mov-ing path of both inner and outer members relative to each other, and the shorter will be the radial path required for tension.
When the spool 13 is slipped on, it rests against stop 12 of the outer members 2. Through the relative axial movement of the spool in the direction of the fixed stop 14, the outer members slide on the inner member 3 and thus cause radial tension. As soon as the outer members 2 come to rest adjoining the inner surface of the spool 13, there also occurs an axial movement of the inner member 3 in the direction of the fixed stop 14. This axial movement is against the force of pressure spring 11, because the inner member 3 rests against the pressure spring over the base 5. In this move-ment, the base 5 moves away from the head 10 of bolt 7. After a spring path, which is determinable in advance, the outer members 2 arrive with their stops 12, arranged at their left-side edge, at the fixed stop 14. The axial posi-tion of the spool is thus always exactly determined by the fixed stop 14.
At the same time, the outer members 2 are under pressure from the spring 11 when they are in this position, because the pressure spring 11 effects a radial pressure of the outer members 2 against the spool 13, over the base 5 and the inner member 3, and because the spring pressure is no longer lim-ited by bolt head 10, so that the clamping jaws are constantly under pressureof the radial force and can readjust themselves automatically.

Claims (5)

THE EMBODIMENTS OF TIE INVENTION IN WHICH AN EXCLUSIVE
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A chuck for use with spools comprising: a shaft; at least one inner wedge-shaped member; means mounting the inner member to one end of the shaft for axial movement and biasing same away from the shaft, gripping means comprising at least two outer members slidably mounted on the inner member to effect movement radially outwardly to thereby grip the inside of a spool;
first stop means connected to the gripping means and engageable with an out-er edge of the spool to limit the movement thereof with respect to the outer members and movable with respect to the inner member; and second stop means connected to the shaft for engaging with the outer members to limit their axial movement against the force of the bias.
2. The chuck according to claim 1, wherein the mounting means com-prises a pressure element and adjustable means for limiting the axial move-ment of the inner member in the direction of the force of the pressure ele-ment.
3. The chuck according to claim 2, wherein the adjusting means com-prises a cap having a base in engagement with the pressure element and a rim connected to the outer end of the inner member and extending radially to limit the axial movement of the outer members in the direction of the force of the pressure element.
4. The chuck according to claim 3, wherein the shaft has a cavity in the one end thereof and the pressure element is arranged in the cavity.
5. The chuck according to claim 4, wherein the pressure element comprises a spring, the adjustable means comprises a bolt disposed through the cap base and the spring and threadably received in the closed end of the cavity to adjustably tension the spring in response to rotation thereof.
CA308,281A 1978-04-08 1978-07-27 Gripping chuck for spools Expired CA1095484A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP2815310.8 1978-04-08
DE2815310A DE2815310C2 (en) 1978-04-08 1978-04-08 Clamping head for winding cores

Publications (1)

Publication Number Publication Date
CA1095484A true CA1095484A (en) 1981-02-10

Family

ID=6036519

Family Applications (1)

Application Number Title Priority Date Filing Date
CA308,281A Expired CA1095484A (en) 1978-04-08 1978-07-27 Gripping chuck for spools

Country Status (18)

Country Link
US (1) US4148444A (en)
JP (1) JPS54155362A (en)
AT (1) AT381918B (en)
BE (1) BE875374A (en)
BR (1) BR7902123A (en)
CA (1) CA1095484A (en)
DE (1) DE2815310C2 (en)
DK (1) DK147970C (en)
EG (1) EG14352A (en)
ES (1) ES479411A1 (en)
FI (1) FI62510C (en)
FR (1) FR2421834A1 (en)
GB (1) GB2018841B (en)
IL (1) IL56911A (en)
IT (1) IT1117641B (en)
NL (1) NL186308C (en)
NO (1) NO147445C (en)
SE (1) SE439291B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7175128B2 (en) 2001-05-17 2007-02-13 Espera-Werke Gmbh Device for accommodating a supply roll around which web strips are wound, particularly a label suppy roll

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES236056Y (en) * 1978-05-17 1979-01-01 EXPANDABLE CONE TO HOLD COILS.
DE3151742A1 (en) * 1980-12-29 1982-09-02 Pioneer Electronic Corp., Tokyo CASSETTE TAPE DEVICE
IT1149490B (en) * 1982-01-27 1986-12-03 Giovanni Gattrugeri EXPANDABLE HEAD FOR COILS IN GENERAL
JPS6149750U (en) * 1984-09-05 1986-04-03
US4694559A (en) * 1986-01-27 1987-09-22 Kasle Steel Corporation Expanding arbor
JPH0527698Y2 (en) * 1986-03-10 1993-07-15
DE3641255C1 (en) * 1986-12-03 1992-10-08 Voith Gmbh J M Clamping head for winding sleeves
JPH052515Y2 (en) * 1987-01-14 1993-01-21
DE3730767C1 (en) * 1987-09-12 1988-12-22 Voith Gmbh J M Clamping head for winding sleeves
EP0350786B1 (en) * 1988-07-14 1993-04-07 Barmag Ag Bobin winding device
JPH0226059U (en) * 1988-08-03 1990-02-20
US5524849A (en) * 1990-05-23 1996-06-11 Beloit Technologies, Inc. Clamping head for winding tubes
BR9008024A (en) * 1990-05-26 1993-07-13 Beloit Technologies Inc TENSION HEAD FOR REELING CYLINDERS
FI100002B (en) 1994-06-23 1997-07-15 Valmet Paper Machinery Inc Tension head for roller sleeves
US5632455A (en) * 1995-07-21 1997-05-27 Gerber Garment Technology, Inc. Apparatus for working on sheet material and having friction hub
JPH09124192A (en) * 1995-10-31 1997-05-13 Nishimura Seisakusho:Kk Rolling core fixing device
US6123285A (en) * 1996-09-23 2000-09-26 R. R. Donnelley & Sons Company Expandable fiber core insert
GB2327736B (en) * 1997-05-02 2001-08-22 Orion Machinery Ltd Improvements relating to shaft support arrangements
IT1295389B1 (en) * 1997-10-23 1999-05-12 Nuova Maip Macchine Agric Kneader for paste of e.g. olives includes a storage tank with a helix system on radial arms of shafts
US6533214B1 (en) * 2000-04-25 2003-03-18 Guttin Christian Sarl Device to support and drive a winding bar or tube-shaped spindle, in order to roll or unroll bolts of fabric
DE10218993A1 (en) * 2002-04-27 2003-11-06 Schlafhorst & Co W Frame-mounted rotating sleeve plate for textile spinning machine has a base with a clamping cone and a clamping ring free with respect to the base
DE10251585A1 (en) * 2002-11-06 2004-05-19 Barmag-Spinnzwirn Gmbh Clamp for a bobbin sleeve between rotating bobbin plates, at a bobbin winder, has an elastic clamp at least at one plate with a radial expansion through guides moving on a conical surface to grip the sleeve end
JP3648234B2 (en) * 2003-04-09 2005-05-18 株式会社東京機械製作所 Winding paper support device
EP1796955A2 (en) * 2004-08-12 2007-06-20 Cannondale Bicycle Corporation Locking bicycle handlebar grip
US7040073B2 (en) * 2004-08-30 2006-05-09 Free-Flow Packaging International Machine for inflating and sealing air-filled cushioning materials
JP4855739B2 (en) * 2005-08-31 2012-01-18 株式会社セイコーアイ・インフォテック Roll body holding device and recording device
ITPC20120010A1 (en) * 2012-02-28 2013-08-29 Tlk S R L EXPANSION CLAMP FOR COILS
CN103878818B (en) * 2014-04-14 2015-12-16 张家港润盛科技材料有限公司 A kind of gas cutting film for plastic sheeting rises roll shaft mechanism
CN107902453B (en) * 2017-11-02 2019-07-23 苏州印丝特纺织数码科技有限公司 A kind of fixed device of printing and dyeing fabrics cloth beam
IT201900023178A1 (en) * 2019-12-06 2021-06-06 Renova S R L SPINDLE FOR COIL SUPPORT
CN111675029A (en) * 2020-06-03 2020-09-18 郑长玲 Communication line bundling device for computer communication
CN112320467B (en) * 2020-11-05 2022-05-03 泰安岱银新宇纺织有限公司 Mechanical winding device for textile technology
CN112623812B (en) * 2020-12-02 2023-05-12 中国水利水电第三工程局有限公司 Waterproof coiled material positioning and fixing clamp
US11807477B2 (en) 2020-12-03 2023-11-07 Sonoco Development, Inc. Chuck with improved torque transmission and centralization

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2733874A (en) * 1953-02-04 1956-02-07 Textile device
BE526760A (en) * 1953-04-29
US2908452A (en) * 1955-06-15 1959-10-13 H G Weber & Company Inc Automatic expanding shaftless chuck
US2942892A (en) * 1956-05-08 1960-06-28 Lynn H Ewing Chuck for paper rolls
US3552673A (en) * 1969-04-09 1971-01-05 William J Evers Expanding chuck
DE7028636U (en) * 1970-07-30 1971-02-04 Heinrich Nicolaus Gmbh CLAMPING DEVICE FOR A REEL REEL.
GB1402250A (en) * 1971-05-19 1975-08-06 Hill J A Coupling members for spools reels or the like
US3881666A (en) * 1972-09-05 1975-05-06 Eric Greenhalgh Winding core chuck
JPS4998686U (en) * 1972-12-15 1974-08-26
DE2344230C2 (en) * 1973-09-01 1983-01-13 Vorwald Kg, Maschinenbau, 4501 Hankenberge Device for clamping winding tubes
JPS5071901A (en) * 1973-11-08 1975-06-14
GB1524967A (en) * 1974-11-13 1978-09-13 Sissons A J Roll-handling equipment
JPS5266704A (en) * 1975-11-28 1977-06-02 Shizuoka Shikouki Kk Chuck for paper tube in stencil paper hanger

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7175128B2 (en) 2001-05-17 2007-02-13 Espera-Werke Gmbh Device for accommodating a supply roll around which web strips are wound, particularly a label suppy roll

Also Published As

Publication number Publication date
DK147970C (en) 1985-08-26
NO147445C (en) 1983-04-13
GB2018841B (en) 1982-06-30
AT381918B (en) 1986-12-10
FI790968A (en) 1979-10-09
US4148444A (en) 1979-04-10
FR2421834A1 (en) 1979-11-02
SE7903102L (en) 1979-10-09
BR7902123A (en) 1979-12-04
ATA222079A (en) 1986-05-15
NL186308C (en) 1990-11-01
ES479411A1 (en) 1980-01-01
FI62510C (en) 1983-01-10
IL56911A (en) 1981-06-29
DE2815310C2 (en) 1982-06-16
NO791111L (en) 1979-10-09
BE875374A (en) 1979-07-31
DE2815310A1 (en) 1979-10-11
EG14352A (en) 1986-12-30
NL7901738A (en) 1979-10-10
JPS6250387B2 (en) 1987-10-23
FI62510B (en) 1982-09-30
NO147445B (en) 1983-01-03
IT1117641B (en) 1986-02-17
IT7967737A0 (en) 1979-04-06
JPS54155362A (en) 1979-12-07
DK145079A (en) 1979-10-09
FR2421834B1 (en) 1984-03-02
GB2018841A (en) 1979-10-24
DK147970B (en) 1985-01-21
SE439291B (en) 1985-06-10

Similar Documents

Publication Publication Date Title
CA1095484A (en) Gripping chuck for spools
EP1175568B1 (en) Quick release nut
US4211375A (en) Chuck for webs of material wound onto spools
US4932111A (en) Roll device comprising a shaft and at least one roll ring arranged thereon
GB1590628A (en) Method of connecting a component to a shaft
MY116634A (en) Improved reaction nut
US4041612A (en) Jaw tensioning device
US4106783A (en) Clamping device for accurately centering a work-piece or a tool
KR920019487A (en) Coupling force adjusting device for clamp device
US6000875A (en) Mounting device
US4168627A (en) Wheel mounting apparatus
US4080144A (en) Tie rod structure for die closing unit of injection molding machine
FI86165C (en) SPAENHUVUD FOER VARPHYLSOR.
US4725162A (en) Clamping element for fixation in a bore of a structural part
EP0378805A3 (en) Method and device for clamping instable parts
EP0224622A3 (en) Apparatus for tensioning a threaded stud or like member
US7228799B2 (en) Moving member fixing apparatus
US3211395A (en) Warping machine
JPS6242347Y2 (en)
SU1110734A1 (en) Clamping device for cartridges of several cop holders
US4911375A (en) Device for adjusting a chuck to axially tension core tubes
JPH0712739Y2 (en) Axis support mounting device
JPS63191513A (en) Built-up gear hob with lever
SU1685623A1 (en) Collet chuck
SU1495937A1 (en) Device for dropping wire into armature slot of electric machine

Legal Events

Date Code Title Description
MKEX Expiry